Bayesian phase stabilization reaches the shot-noise limit with ~1 MHz photon rate and ≤6.5% duty cycle, delivering >97% visibility and >85% parity contrast for ion-ion entanglement over 100 km.
Twin-field quantum key dis- 8 tribution over a 511 km optical fibre linking two distant metropolitan areas
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Bayesian Phase Stabilization at the Shot-Noise Limit for Scalable Quantum Networks
Bayesian phase stabilization reaches the shot-noise limit with ~1 MHz photon rate and ≤6.5% duty cycle, delivering >97% visibility and >85% parity contrast for ion-ion entanglement over 100 km.